Description_x000D_ Application_x000D_ AA92593 has been used as a selective melanopsin inhibitor._x000D_ Packaging_x000D_ 5, 25 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ AA92593 blocks melanopsin activity and stimulates α-melanocyte-stimulating hormone (α-MSH) expression and induces melanin distribution in the melanophores, which darkens the embryo._x000D_ AA92593 is an opsinamide, a potent antagonist of melanopsin-mediated phototransduction with an IC50 of 665 nM in a Ca2+ flux assay in CHO cells expressing melanopsin (Opn4) and selectivity > 10 μM at 74 common biological targets. AA41612 is believed to act by competing for binding to melanopsin. AA41612 inhibited mouse pupillary light reflex and light aversion in vivo. AA92593 and similar compounds might be useful in alleviating the photophobia associated with migraine._x000D_ Features and Benefits_x000D_ This compound is a featured product for Cyclic Nucleotide research. Click here to discover more featured Cyclic Nucleotide products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.